"Preemption" is also sometimes used in the United States to refer to the displacing effect state laws might have on ordinances enacted by municipalities, especially in the context of alcoholic beverage laws, gun laws, zoning laws banning hydrofracking, and in the area of FDA approved pharmaceuticals.

Preemption (land), a type of land transfer in the United States, as in the Preemption Act of 1841

Preemption Line, the line that divided the Indian lands of western New York State, that had been awarded to New York, from those that had been awarded to the Commonwealth of Massachusetts by the Treaty of Hartford of 1786

Pre-emption rights, the right of existing shareholders in a company to buy shares offered for sale before they are offered to the public

FDA Preemption, legal theory in the United States that exempts product manufacturers from tort claims regarding Food and Drug Administration approved products